| John Grefe | |
|---|---|
| Country | United States |
| Born | September 6, 1947 Hoboken, New Jersey |
| Died | December 22, 2013 (aged 66) San Francisco, California |
| Title | International Master (1975) |
| Peak rating | 2470 (May 1974) |
John Alan Grefe (September 6, 1947 – December 22, 2013) was an American International Master of chess.[1]